Clashes erupt as Mexican president visits city

Police fired tear gas and clashed for several hours Tuesday with teachers protesting a visit by President Felipe Calderon to the colonial city of Oaxaca. The protests are reminiscent of unrest that paralyzed the southern city for five months in 2006 and left at least a dozen people dead. The Section 22 teachers union said 20 protesters were injured during the running clashes, which lasted several hours. Police at the scene said five officers were hurt. Reporter Gildardo Mota of Radio Rama said he was struck on the left leg by a bullet. The violence broke out in Oaxaca's main plaza as the teachers gathered to protest. The teachers threw rocks and hit police with sticks. Police fought tear gas. It was unclear who fired the live ammunition. Oaxaca, the capital of the southern state by the same name, is one of the most popular tourist destinations in Mexico because of its picturesque colonial center, Zapotec ruins and surrounding Indian villages known for their arts and crafts. The protesters also torched a government vehicle and beat the Oaxaca state Public Safety Secretary Marco Tulio Lopez when he tried to call for calm outside the government offices. Section 22 was the same union that began the 2006 protests. That upheaval began as a teachers strike to demand higher pay but quickly ballooned into a wider movement against then-Oaxaca Gov. Ulises Ruiz, who was accused of rigging his election.